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"Why do the moon phases change?" Sun, Earth, and Moon System PPT Courseware
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2023-09-25 17:32:11
"Why there are four seasons in a year" The Movement of the Earth PPT Courseware 3
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"The Laws of Voltage in Series and Parallel Circuits" Voltage Resistance PPT Courseware 3
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"The Laws of Voltage in Series and Parallel Circuits" Voltage Resistance PPT Courseware 6
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"Household Circuit" Electric Power and Electric Power PPT Courseware 2
下载 572 次
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"Household Circuit" Electric Power and Electric Power PPT Courseware 3
下载 116 次
2023-09-25 18:20:18
"Safe Use of Electricity" Electric Power and Electric Power PPT Courseware 4
下载 159 次
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"Safe Use of Electricity" Electric Power and Electric Power PPT Courseware 5
下载 611 次
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"Telephone" Electromagnetic Wave PPT Courseware 3
下载 952 次
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"Current and Circuit" PPT Courseware 5
下载 552 次
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"Current and Circuit" PPT Courseware 6
下载 703 次
2023-09-25 18:20:47
"Voltage" Simple Circuit PPT Courseware
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2023-09-25 18:20:10
"Electric Magnetism" Electricity and Magnetism PPT Courseware
下载 782 次
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"Simple Circuit" Electrical PPT Courseware 2
下载 443 次
2023-09-25 18:15:00
"Safe Use of Electricity" Daily Electricity PPT
下载 503 次
2023-09-25 17:33:31
"Why Proof" Proof of Parallel Lines PPT Teaching Courseware
下载 365 次
2023-10-05 09:43:06
"Why there are four seasons in a year" The Movement of the Earth PPT Courseware 2
下载 220 次
2023-10-05 09:34:59
"Why Airplanes Can Go to the Sky" Pressure and Buoyancy PPT Courseware 4
下载 700 次
2023-09-25 18:20:03
"What Can We Do for the Earth" PPT Courseware for Humanity's Home
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2023-09-25 18:17:55
"What are the uses of rules" I make friends with rules PPT courseware 2
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"What's in the Soil" The land where plants live PPT courseware 4
下载 230 次
2023-09-25 17:32:07
"What changes have occurred in matter" Changes in matter PPT download
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2023-09-25 17:31:47
"Why Shadows Change" Flagpole and Shadow PPT Courseware 3
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"Laws of Voltage in Series and Parallel Circuits" Voltage Resistance PPT Download
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2023-09-25 17:33:36
"What's in the Soil" The land where plants live PPT courseware 2
下载 675 次
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"What's in the Soil" Earth's surface and its changes PPT download
下载 354 次
2023-09-25 18:14:37
"What's in the Soil" The land where plants live PPT courseware 2
下载 136 次
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"The Laws of Voltage in Series and Parallel Circuits" Voltage Resistance PPT Courseware 2
下载 366 次
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"The Laws of Voltage in Series and Parallel Circuits" Voltage Resistance PPT Courseware 5
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"Why 0.618?" 》Quadratic equation of one variable PPT courseware
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"Understanding Electric Power" Electric Energy and Electric Power PPT Courseware
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"Safe Use of Electricity" Electric Power and Electric Power PPT Courseware 3
下载 473 次
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"Understanding Electric Power" Electric Energy and Electric Power PPT Courseware
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"What does it mean to be a citizen" We are citizens PPT courseware
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"Current Laws of Series and Parallel Circuits" Current and Circuit PPT Courseware 4
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"Safe Use of Electricity" Electric Power and Electric Power PPT Courseware 5
下载 311 次
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"Safe Use of Electricity" Electric Power and Electric Power PPT Courseware 3
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"Measurement of Current" Current and Circuit PPT Courseware 3
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"Measurement of Current" Current and Circuit PPT Courseware 5
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"Measurement of Current" Current and Circuit PPT Courseware 6
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"Measurement of Current" Current and Circuit PPT Courseware 8
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"Measurement of Current" Current and Circuit PPT Courseware 9
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"Measurement of Current" Current and Circuit PPT Courseware 2
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"Measurement of Current" Current and Circuit PPT Courseware 4
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"Two Charges" Current and Circuit PPT Teaching Courseware
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"Two Charges" Current and Circuit PPT Courseware Download
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"Current Laws of Series and Parallel Circuits" Current and Circuit PPT Courseware 3
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"Charge" Simple Circuit PPT Courseware 2
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2023-09-25 18:20:12
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